Play audio in background by use BackgroundCapableMedia
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06-12-2019 - |
Вопрос
In the windows8 Developer preview we can use this code to play audio in background:
mediaElement.AudioCategory = AudioCategory.Media;
In the windows8 Customer perview, It seems that we should use AudioCategory.BackgroundCapableMedia instead of AudioCategory.Media
mediaElement.AudioCategory=AudioCategory.BackgroundCapableMedia;
and I also Declare a background task in appxmanifest
<Extension Category="windows.backgroundTasks" EntryPoint="TestApp.App">
<BackgroundTasks>
<Task Type="audio" />
</BackgroundTasks>
</Extension>
but it didn't work for me and the MediaElement will throw an "MF_MEDIA_ENGINE_ERR_SRC_NOT_SUPPORTED“ exception in MediaFailed EventHandler How should I do?
Решение
You also need to set up these event handlers:
using Windows.Media;
MediaControl.PlayPressed += MediaControl_PlayPressed;
MediaControl.PausePressed += MediaControl_PausePressed;
MediaControl.PlayPauseTogglePressed += MediaControl_PlayPauseTogglePressed;
MediaControl.StopPressed += MediaControl_StopPressed;
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void MediaControl_StopPressed(object sender, object e)
{
myMediaPlayer.Stop();
}
void MediaControl_PlayPauseTogglePressed(object sender, object e)
{
}
void MediaControl_PausePressed(object sender, object e)
{
myMediaPlayer.Pause();
}
void MediaControl_PlayPressed(object sender, object e)
{
myMediaPlayer.Play();
}
I think that should have it working.
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